US827460A - Combined dust separator and collector. - Google Patents

Description

,. PATENTBD JULY 3 1, i906..

o.M.VMRsE.'- COMBINED DUST SEPARATOR AND COLLECTOR. Arruommyrunn AUG. 1o, 1903)" f 1 SHEETS-fsEEET 2.

- COMBINED DUST S'EBARATORAND GO'ILE'GTJOB..

l ,14 SHEETS-muis'.

unrrnn sragnfs iATnNT onirica oaviLLnM. MORSE, or JAoKsoN, MICHIGAN.. l

COMBINED D UST sEP'AnA'l-on AND COLLECTOR..

No. 827,460. i

Specification ofLetters Patent.

rammed 31113? 31,1906. i

Application filed August 10, 1903. Serial No. lfi'l.

i. Jackson, in the county of Jacksonand State `of Michigan, have inventedcertainnew and useful Improvementsin ICombined Dust Sep-` arators and Collectors; and I hereby declare vthat the following is a full, clear', and exact description thereof, reference being'v had to the accompanying drawings, which form part of this specification. 4 j

My invention has for its primary object to rovide a vmachine adapted to receive air aden with dust of all qualities and grades of ineness, such as is handled in a flouring-mill, and which Willclarify the air of all dustl particles, in the separation of the dust graduatin the particles thereof according to 'size an character.

, Another object of my invention is to'provide improvements in the general arrangement and the construction-of machines of the character specificd. p

To these ends my invention consists in the combination, arrangement, and` construction of parts, andY features of construction herein- 'after more fully described, and specified in l the claims.

35 tary section taken online 5 5 of Fig. 4. Fig. v

` reference refer to like In the drawings, Figure 1 is a perspective lview cfa machine embodying my invention.

Fig. 2 is a vertical section therethrough on. two planes, as to the conveyor being taken on line 2 2a and as tothe remaining structure upon the 'plane of line 2b, all of Fig.v 3. Fig. 3 is a top plan view of the machine.- Fig. 4 is a broken elevation. Fig. 5 is afragmen- 6 is a detail showing one of the dust-collecting pockets detached. Figs. 7 and 8 are re-, spectively aside elevationand an endview of the operating-pand detached.

'lhroughoutfthe drawings like numerals of arts. 10 indicates a centri 'ugal separating-chamber or settling-chamber of any vsuitable configuration, that herein illustrated being in the form of a truncated cone.

.11 indicates an intake-spout for the dust an air arranged tangentially rel-ative to the 4chamber'lO and openingthereinto, as indil 14 indicates an air-outlet at the top of the chamber 10, made through the otherwise imperforate deck 13, andl15 a tubular guard l therefor depending into the chamber 10. f lindieates a spider mounted on the guard 15 and provided with a centrally-arranged hub 17. 18 indicatesa vertical shaftaxially disposed'within the chamber 10, finding bearing at its lower end in a step 19, provided therefor in the bottom of the vcasing and extending upward through Va bea-rin -aperture in the hub 17 to project a suitab e distance above the top of the chamber 10, as best illusfrated in Fig. 2. The iloor 10of the separatingchamber 10 is provided with suitable perforations (indicated at 20) to permit the escape of particles of dust falling thereon.

21 indicates a cleaning-arm suitably secured to the shaft 18-and arranged to sweep over the floor of the-'chamber'to carry .the

dust-particles to the apertures 2,0.

22 indicates a conveyer-trough arranged below the separating-chamber 10, with which the openings 20.in the floorof the separatingchamber communicate.

2,3' indicates a partitioncentrally dividing the conveyer-trou h. n

25- indicates a ouble spiral conveyer arfee material outward' from the partition- 85 I 4ran ed within the trough and designed to,

wall 23 toward the ends of the trough on both sides.

26 indicates a driving-pulley upon the 'shaft oi the conveyer 25.

mounted 27 27 and 27 27 indicate walls or parti' tions arranged within the conveyer-trough at opposite lends thereof and partially closing the trough to form .traps of well-known construction.'

28 28 indicate corresponding outlets from the traps at the ends of the trough.

-The parts thus far described are well known inthe art, and thereforeneed but slight description.

Ico

SO'a'ndBO indicatestandards or legs ar-l ranged to support the machine, two of the.,

legs 30 being extended vertically to approximately theheight of the top of the machine to ailord support to operating` mechanism to be described? The separating-chamber 10":

is preferably'secured'to the legs near their-...'-

bases, and additional support to the chamber v.

isv affordedby brackets 31, connecting the lo legs with the top extension 13 of saidchamber.

, skin or the like applied to the top surface of said Wall 32. y

34 indicates what I will arbitrarily term the idistribution-chamber, Which-is a' l10r.

zontal air-chamberfor the reception of partlypuried air'from the centrifugal separating or settling chamber 10, formed by the coperation wlth the top of chamber 10 and the peripheral Wall 32 of the turret-likeA-meinber 34, comprising' a top 35, a depending annular wall of an interior diameter substantially equal tothe size of the true top 13 of charnber 10, and an annular extension 37, referably equal in Width to the top extens1on 13 ef chamber 10.

38 indicates an annular running-block arranged on the under side of the extension 37 to Contact with the packed edge of the peri heral Wall 32.

he turret member 34 is ad justably mounted upon the shaft 18, to this end the upper extremit of the said shaft being recessed, as indicate( at 18', and the top 35 of said member provided with an adjustable bearingscrew 39- It will be apparent by the vertical adjustment of screw 39 the weight of the -turret member may be distributed to4 a lgreater or less extent upon the shaft 18 and the contacting peripheral members 32 and 38.

The turret member is rotatable, and means are provided for effecting the rotation of the same as follows: 40 indicates a shaft mounted in suitable bearing-braclwts 41, carried by the extended legs 30 of the machine and preferably arranged in parallelism to the con- 'veyer 25. 42 indicates a driving-pulley secured to one end of the shaft, adapted to be rotated by power transmitted from any suitable source. 43 lindicates a worm -gear mounted on the shaft and arranged to drive the pinion 44, arranged in mesh therewith. 45 indicates an operating-pawl, at one end eceentricallypivoted at 46 to the said pinion 44 and at its other end provided with a hook 45, terminating in downwardly-turneil separated 'fingers 45, designed tostraddle a coacting rack. 47 indicates an annular rack with which the pawl 45 engages, said rack being suitably supported above the top 35 of the turret member coneentrically therewith andl provided with ,a series of inclined teeth 47, equal in number to the number of dwells Awhich it is desired to give to the turret member during one revolution thereof.

The arrangement Vof the turret-rotating parts thus described is such that during the constant rotation (of the shaft 40 the worm 43 imparts rotation to the pinion 44, causing the paw] 45 to be advanced and withdrawn during each rotation of said pawl. The fingers 45" of the pawl-hook overlying the rack 47 maintain said hook in constant engagement with said rack, so that during its forward movement the )awl slides over one of the inclined rack-teeth 47. Just as the pawl 46 reaches itsmost advanced position ready to commence its return stroke it passes the upper end of one ofthe teeth 47', whereon it is traveling, and engages with the shoulder thereof, so that during the return movement of the pawl, occurring during the second half of a rotation of the pinion 44, the rach is drawn forward a distance corresponding to one tooth, rotating therewith the turret and its associated parts.

The turret member 34 and the shaft 18 are connected for rotation by means of`a stud 1 Q, secured in depending position to the top 35 of the turret, and a lever-arm 50, suitably secured to the shaft 18, as by a set-screw 50.

Associated with the distribution-chamber is a series of fabric dust-collecting agencies or filters, such as the pockets or chambers 52, each arranged in commuiiieation with the distribution-chamber in the path of air escaping therefrom. Each pocket `is prefer ably of substantially the construction illustrated in Fig. 6--that is to say, generally c lindrical in form and comprising two pocket members, one of which is suspended relative to the other in such manner as to be capable of contact with said other member.

53 indicates the outer fabric pocket member o'f a height appro:imalely that of the wall 3G of the distribution-chamber, at its lower end secured to a ring 5-1, having a eircumfercntial llange 54', and at its upper end secured to t he outerperiphery ofa supportingannulus 55. Y

IOO

5G indicates the inner pocket member or collecting agcnev, consist ing of a fabric cylinder or bag shorter than the outermember, at its upper suspended from the inner periphery of support 55 and at its lower end closed and weighted, as b v a wooden dishr 57, bearing a weight 5t) 5t) indicate cleaning-chains suspended from the annulus 55 between the fabric cyl inders 53 and 515.

The material whereof the pocket 52 is composed is preferably an open-meshed piled fab-- ricthat is to say, a fabric certain threads of which are looped to project on one or both sides of the plane of the warp, so that one or both surfaces of the cloth shall presenta multitude of tiny loops of piles distinct from each other and not liable to mat and yet in close arrangement dinary rlurkish toweling to fullil requirements, and so prefer to employ such material.

G0 indicates a cross-bar extending diametrically across the ring 55 of each pocket to afford means of attachment for the pocket supporting devices.

A suitable number of pockets 52, corresponding with the number of teeth of the ln practice] have found or-l IOS rack 47, are arranged with their lower ends in' register with holes provided therefor'in the .annular extension 37 ofthe turret member.

.The rings 54 are arranged Vwith their ilan es 54 in engagement withthe ed es in the ho es of the turret member vto hol against outward strain.

. 61 61 indicate a series of springs, one for leach pocket', projecting radially over-the top 35 of the turret membertopass centrally over said pockets l their respective pockets turret member.

l provi 62 62 indicate bolt connections between the'su ports 60 of the pockets. and springs 61 died therefor..v Each spring 614 is preferably adjustableas to lension, to such end being mounted on a sup orting-block 63, bifurcated at 63 and arranged on the top 35 ofthe A bolt' 64, provided with a thumb-screw 64', is arranged for regulating the extent of separation of the bifurcated portions ofthe support 63. i

65 indicates an additional bolt for securing the spring member and its support 63 to the top ofthe turret.

t will be apparent. that the thumb-screw 64\being adjusted upon its bolt to .compress the bifurcated portion of the support. 63, ythe pocket is under normal conditions stretched.

outward extremity of the spring-arm @ltends to rise, creating an upward' strain upon thev pocket, which is resisted by the engagement of .the ring 54 with thej annular. extension of the turret member. Consequently each taut.. y

Provision is made for removing such dust as may accumulate in the pockets'52 and catching that which may rise to the` top :of the separating-chamber -as follower- 66 indicates what I will call a dust-chute, comprising a vertically-extending chamber suitq 'ably arranged on the exterior of chamber 10, j wit its upper end arranged for communication with one or more of the pockets 52 during their progression thereover and its lower endiarranged for communication with the conveyer-trough 22 o r other suitable dust-receptacle. rThe interior of the chute 6 6 is preferabl divided from front to back into a large an a small compartment by a wall 67, extendinlg from the top of the vchute to a pointV suitab y adjacent the bottom thereof,`and the f larger compartment' .is divided by an inclined l 68. The larger compartment ofthe .chute containing the inclined wall 68, as indicated upon the right in Fig 4,- is referably disposed in vertical alinement with the conl veyer-trough 22, the smaller sefction of the i chute bein offset with relation to said trough and provi ed atit's!v bottom withan outlet-v aperture 69. A valve 70, pivoted at its lower ge in alinement With'thewall 467, is preferarranged to control the communication aolioth latral "divisions of the dust-chute @medie-Eiga?.

vwith the' trough'22'or'the'perture 69, as indiy chute'.

` rom the dlstributionfcharnber 1n the wallof chamber 10 and connecting the said 'separatingfchamber 'with the smaller compartment ofthe dust-chute- 72 is an aperture in the extended portion i '7l-indicates an aperture extending through .13 of the top of chamber l0, communicating with the larger section of the dust-chute in front of the inclined wall 68.

Means are provided whereby the communi- -cation of one or more ofthe pockets 5 2 with the distribution-chamber 34 may be succes sively cut ofi? andthe said pocket or pockets put into communication with the dust-chute 66. In the present form of my invention I have provided means for accomplishing this temporary segregation of individual pockets as follows:

75 75 indicate radial partitions secured to the revolving turret member and extending inwardly from the periphery thereof substantially to 'the' inner periphery of the annular extension 37 and downward from said exten-v sion 37 to the extension 13 of the top of the separating-chamber to forma series of openl compartments equal in number to the pockets. These separating-partitions 75 are preferably packed with sheepskin or like material at their exterior and lower edges to make air#v tight contact with the coacting surfaces ofthe distributing-chamber. i,

76 indicates an arc-shaped partition wall, arranged at'a point radially inward from the aperture 72, with its curved .exterior face coinciding with the path of rotation of the inner edges of the radialpartitions 75. The wall roo 76 extends vertically to meet the'under facel of the annular extension 37 of the turret and circumferentially a distance suflicient tol cover such ofthe radial compartments .as

may be in communication with thevdust- The peripheral face and ipper edge IIO dustltothe dust-chutewithoutpermittigth@ vescape'of any particles therefrom into the distribution-chamber.

While I herein provide for segregating the pockets individually, it ,willbe' apparent `that groups of pockets lmight be so separated a similar manner for purposesto'V be described.

It will thus be seen that I provide bythe coacting partscomprising the walls 32, 75, and- 7 6, the dustLchute, and the communicating portion ofl trcugh'22 a continuous dust box or casing isolated from the distributing chamber 'containing 1n a suitable part the conveyer 25, and with which the filterssuccessively register for the purpose of being cleaned.

Means are provided for effectively freeing the pockets of dust when in the position described, said instrumentalities being herein indicated as follows: 7S' indicates a cam mounted upon the revolving shaft 40 and provided with one or more projections 78', so disposed that in rotation they sweep over the top of the bolt 62 of the pocket 52 which is at the time in communication with the dust-chute. The action of the cani, as will be readily seen, is to alternately depress and suddenly release the end-of the spring 61 associated with the said pocket 52. SOindicates a fan-easing suitably mounted adjacent the dust-chute 66, and 81 indicates an exhaust-fan mounted t-lierein; S2 indicates an inlet-pipe extending from a point below the inclined partition-wall GS of the Ydust-chute to a point adjacent the axis of rotation of thc fan and establishing communication between the chute and the fan-casing. 83 indicates an yair-outlet from the fan-easing, which may be formed at any suitable point, herein indicated as establishing communication between the fan-casing and the expansionchamber 34. The fan 8l may be geared to be driven from the shaft 4t) by suitable pulleys 84 and S5 and th'e conneeting-bclt S6. S7 indicates a small pulley on the shaft 4t), connected by belt Si) with the shcave 26, mounted on the conveyor-shaft. El() indicates a lever pivoted to a suitable portion of -the framework at a point approximately in alinemcnt with the path of movement of the pawl 45 and provided at its outer end with an antifriction-ri)ller til, constantly held under tension with spring 92 in contactI with the upper surface of the annular extension 37 o'f the turret l-t.

l will now statc the operation of the niachinc, assuming that it is being used in 'a louring-mill. VDust-laden air under suflicientfpressure 1s introduccd into thc machine by the spout ll, entering thc separatingchambcr lll tangcnlially, and conscipicntly assumes a \\fhirling or vortical motion, 'lhe centrifuga-l clfrct ol' the whirl throws thc hc'avicr and denser dust particles out to thc 'pcriphcry of thc chamber, alongI which thc \v travcl in spiral lines, thc coarscr particlcs finding thcir wa do\\n\\ard undcr tht` influcncc of gravity to thc floor of thc cl1a..1bcr and thc liner dust particles scelting thi` arca of lcast pressure, and so rising to thc top of thc chambcr. rllu` coarse dust after reaching the floor ttl is swept by the arm .21 through the apertures 20, whence it is carried off b`\, thc conveyor'. 'l`hc `liner dust reaching thc small cnd of the chamber, as

aforesaid, whirls about therein until it reaches aperture 71, through which it cscapes into the dust-chute. A portion of the dust introduced into the machine, however, is of such a nature that it is incapable of separation from the air by a centrifugal machine, such dust being almost irnpalpalilc and so light as to be little influenced by'centrifugal action. This dust escaping from the separating-chamber 1t) with 'the main body of air passes up through the tubular guard 14 into the air-distrilniting cnamber 34', where, having lost its rotary motion, it diffuses itself throughout the chamber and passes out through the dust-collecting pockets 52, distributing itself equally to the various pockets.

'lhe action of the toweling dust-pockets is peculiar. While the mesh of the piled Turkish-toweling fabric whereof they are preferably composed is openl enough to permit free passage of the air therethrough and would naturally seem much too coarseI to catch the extremely fine dust particles which find their way into the distributioli-chamber, yet it is a fact that fabric of the character described is the mc t efficacious for the purpose of separating this 'fine dust of any textile material of which l am aware. This efficiency in the separation of the dust particles Iattribute to the peculiar action of the 95 looped surface or pile, the threads whereof serve to break up the flow of thc air in every direction, causing the formation of myriad minute eddies or whirls of ever-varying directions, v herein the tinestdust particles are 10o caught and by theI constantly-varying conditions of the whirls deposited upon theI fabric; but from whatever cause its etliciency results the fact remains that the cloth dcscribed performs its function of catching thc dustin an adwtntageous manner without becoming clogged by the accumulation of dust therein and is itself readily susceptible to cleaning. Other 'forms of fabric might be employed for the purpose dcscribcd, how- 1 1o over, without departing from thcI spirit of my invention.

During thc operation of thc machin(` thc shaft 4() is licpt constantly in rotation, its worm-gear driving the pinion -l-l, which actuatcs the revolving turret inA a. manner hcrct oforc described.

'l`hc spring-actuated lever ttt), with its roller til, is provided to oppose any lifting action that the pawl might exert upon thc 12o turret in operating upon a tooth of tht` racli. 'lhc revolution of pinion l-l and thc conscqucnt stcp-by-stcp movement of thc turret being slow rclativc to thc spccd of rotation of thc shaft 4t), the turret is allowed to dwell 125 for a period between its successive movements, and thc parts are so arranged that` during each dwell on(` of the pockets is in vertical alincmcnt with thc aperture 72 communicating with the dust-chute. Upon such i 3o the dust adhering'thereto. y This mechanicalv pocket the cam v78 acts one or more-times, as eretofore described, depressing vthe pocketholding spring I62 and then suddenly permitting it to return to initial position. 'This which loosens the vdust adhering thereto and causes more or less thereof to become-detached from the pocket. IThe j erking'of the pocket by the spring also causes the' inner yweighted bag or cylinder 56 to be violently thrown ab.out, strilring the outer pocket at. various points, and thereby assisting in clear ing it of dust, and at the same time distorting itself in such manner as to eifectually loosen cleansing is furthered by the provision of the chains 59, which also thrash about, scraping and jarring the surfaces of both pocket-cylinders presented to the interior ofthe machine.

The dust ii'the segregated pockets .thus f loosened is drawn therefrom by the action of the exhaust-fan 81, which, constantly eX- haustin air from the dust-chute, vcreates a )reverse draft'throu h the dust-pocket, the

'air now entering sai pocket from the exterior ratherfthan passing out from the interior of the machine, as heretofore; the dust mechanically loosened is 'drawh into the dustchute through the aperture 7 2,' falling upon'the` upper surface-of the .inclined partition-wall 68, whence it falls to the botthe: a erture 72, a partitionwal tom of the chute to be disposed of.

lt will be noted that the point in the chute from which the exhaustsfan draws the air is not directly in the path of the dust falling` into the chute from either the a erture 7l or lbeing interpose between each of said paths and the oint 'of communication with the exhaustan. Conse uently but little, if any, of the dust in said c ute passes into the fan through the pipe 82; but in order to guard against ermitting the escape of any dust I prefer to orce the air exhausted by the fan 82 backv into some part of the machine, thereby utiliz- 'in the pressure generated by said fan.

. t will be noted that by the rovision of thevalve 70 the outlets provided y the dustchute for light dust escapin from the top of the separating-chamber an the imp'alpablel dust gathered from the dust-pocket are made independent; but if it is not desired to maintain a separation lbetween these two .grades of dust the valve may'be swung to either side to throw both products together either into I the conveyerf'trough 2v2 or through the out.-

let 69.

For purposes of a fun disclosure thaw herein set forth in some detail one embodiment Aof my invention which I have found advantageous; but I .do not` desire to be unvderstood as limiting myself to the construction herein shown for illustrative purposes in As a result.

detail, as it will be apparent that numerous l from the spirit and scope thereof. results in slackening the tensionupon the fabric of the outer pocket-cylinder 58 and then suddenly jerking it to full tension,

Having thus described my invention, what vI claim, and desire to secure by Letters Patent of the United States, is-

1.v In a machine of therclass described, a centrifugal separator. comprising a decked chamber having'a tangential inlet anda sin,

le air-outlet in its deck, a fabric dust-col ector comprising a distributing-chamberl lcommunicating with said separator only through saidair-outlet, a plurality of fabric pockets normally in open Ycommunication with the `distributing-chamber, means for successively cutting off 'the communication of the pockets with the distributing-chamber,l ,and means lfor cleansing the pockets so cut off.

2. ln a machine of the class described, a centrifugal separator having a tangential inletv and an outlet in its top, a turret member superposed for rotation on the separator and i providing a distributing-chamber communieating with the separatorgonly throughsaid outlet, said distributing-chamber having outlets therefrom,l fabric pockets carriedby the turret member and communicating withsaid tating the turret member, means forv cutting off the'communication -of pockets with the cut off. l

` 3. In a machine of the class described, a

outlets from the dust-chamber, meansfor roy distributinigchamber at a predetermined v point, and means for cleansing the pockets so centrifugal separator having a'tangential inlet and an outlet in its top-,4a turret member superposed for rotation on the separator and comprising an elevated central portion and a surrounding annular portion formingfa distributingchamber, said annular portion being provided with outlet-openings, a fabric pocket foreach outlet intowhich the outlet opens, means-'carried by the elevated portion A,

I I O i chamber tapering toward its top,\"having a tangential inlet` and a dust-outlet at its lower end, .a peripheral. dust-outlet at its smaller'end; a substantially axial air-outlet at its upper end, a distributing-chamber 1nto which the separator air-outlet discharges sup i perposed upon said separator, having air.;

outlets, and fabriccollecting agencies arranged to receive the discharge from. the distributing-chamber outlets, means-for cutting ofi",` the communication of pockets with the .distributing-chamber, and means for cleansing the pockets so cutoff.

ifo

tionary member having therein inlet andeut- 'let openings, and a rotary top, fabric dustcollecting pockets arranged on said top andnormally communicating with the chamber, means for rotating the top, with'its pockets, means for cleaning the pockets when over the outlet in the stationary member, and means for cutting offl the pocket being cleaned from communication with the distributingchamber, comprising radially and circumferentially arranged Walls, the radial walls being carried by the rotary top.

7. In. a dust-collector, the combination i A with a fabric pocket of a spring at 'one end engaging' said pocket and extending transversely with reference to the, axis of thel pocket, and a support fory the other end of said spring com rising a bifurcated block and 'an adjustab e clamping device securing the last said end of the spring to the bifurcated ends of the supporting-block and means for actuating the spring. 4

8. In a machine ofthe character described, a chamber int'o which dust-laden air is impelled under pressure, an outlet from said chamber opening to the atmosphere, a fabric dust-collecting agency closing said outletopening when in any position', said collecting agencylbeing arr-aiiged to present one surface to the area of higher pressure within the chamber and its other surface to the atinosphere, said dust-collecting agency being sus-- pended from its upper end and weighted and free for lateral and upward movement at its lower end, in combination with means for l jarring the collecting agency.

Q.y In a machine of the character described, in combination, a distributing-chainber having an air-outlet, a dust-collecting structure comprising fabric pocket ymembers intoI which said outlet o ens, a su port for the upper end of said poc et member .havin an outlet-- opening therein, an inner poc zet member suspended `from said support and opening at its upper end into the outlet, said inner pocket member being unrestrained .as nto lateral and u ward movement, weighted, and closed, an' means for arring said collecting structure.'

10. In combination in a dust-collector, a collecting agency comprising a support having an outlet therein, an outer fabric pocket member surrounding said support, an inner fabric pocket member suspended from said support and opening at its upper end into the outlet, the lower end of said inner pocket upward movement, weighted, and closed, means for directing air into the outer pocket memberand means for. vertically vibrating the pocket-support.

l1. distributing-chamber having an inlet for the dust-laden air, and comprising a rotatable top portion, having a'seiies of outlets therein, a dust-collecting structure a/ssociated with tures comprising a fabric pocket mem er surrounding said outlet and into which said outlet opens, a support for the upper end of said fabric pocket member, said support being an inner pocket member opening into said outlet in the support, land suspended from said support, said inner member being weighted, closed, and unrestrained as to lating the rotatable ortion of the distributingchamber, means or successively cutting off said dust-collecting structures from communication with the inlet to the distributinging structure when so cut ofi.

12. In a dust-collector, a settling-chamber, a horizontal air-chamber disposed above and centrally communicating with the setpurified air, filtering means connected with said air-chamber; and filter-cleaning means including a casing isolated from the airchamber and communicating with a portion tion wi thin' said casing.

13. In a dust-collector, a settling-chamber, a horizontal air-chamber disposed above and centrally communicating with the setpurified Aair, iiltering means connected with said air-chamber, and filter-cleaning meansincluding a easingisolated from the air-chamber and communicating with a portion of the and means for setting up suction within the casing. Y

1,4. In a dust-collector, a settling-chamber, aliorizontal air-chamber disposed above thug-chamber for the reception'of partly'- purii'ied air, filters constituting an outlet for air from the air-chainber, and filter-eleamng the air-chamber and adapted to connnuni-i cate with some of the filters.

15. In a dust-collector, a tapering sc ttlingchamber, a horizontal air-chamber disposed In a machine of the class described, a 7 5 provided with an outlet to the atmosphere, 8 5

chamber, and means for jarring the collectmeans including a box within which suction i is maintained; said box being isolated from id 5 member being unrestrained as to lateral and 7o each outlet, yone of said dust-collectii fr struc- 8o eral and upward movement, means for rotat- .9o

tling-chamber for the reception of pai'tlyicc of the filters, and means for setting up suc- 195 thug-chamber for the reception of partlyiro filters, conveyer means' Within the casing, 1.15`

and centrally communicating with the set 12o above and centrally communicating with the i 3o 827,466A .i v i "difl v Settling-@inhiber for the 'reoefption .of p'rtlym'eansrinc'iuding a box Within which suction A purifiedoir, filters `constituting an outlet for l is maintained, and means for agitating the I5 'air frolnfthf'e air-chamber, and `filter-cieanfilters; said box being isolated from the .air- Y A ingmeansrincluling a conveyor-box within chamber and adapted to communicate with A 5 VWftiioh` suctionis maintained; said box being I the filters which are being operated uponby isolatedlfroni the air-chamber and adaptedv the agitating means.

l A r to communicate with some of the filters. In testimony that I claim the foregoing as 52o 1'6. In o dustsoolleotorfe settling-cham! my own I affixniy signature in p1e's-gsfe -of ber, a horizontal air-'chamber disposed above two Witnesses. io and centrally communicating with the set- ORVILLEY M. MORSE.

ding-chamber or''thegreeeption of partly- I In presence ofpurified air, lters oon'stituting an' air-outlet i GEORGE J. MAY, Jr.)

from 4the air-cheminer, vlndf iilter-cleaning I MARX: yF. ALLEN.

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